Over the past eight months, I have had the pleasure of being one of Conrad Black's editors. His blogs have arrived weekly from prison like clockwork. Often I wondered how he wrote these from prison. I don't just mean the mechanics (because those were obviously an issue: How do you get access to a computer? Do you have Internet?). But how did he manage to keep up on everything? Reading his highly informed and topical blogs you would never know this was a man almost entirely cut off from the information sources we take for granted. Here's the bottom line: The key to Conrad's survival has been his mind.